42005131422 has 32 divisors (see below), whose sum is σ = 84458248992. Its totient is φ = 13927171584.

The previous prime is 42005131379. The next prime is 42005131423. The reversal of 42005131422 is 22413150024.

It is a junction number, because it is equal to n+sod(n) for n = 42005131392 and 42005131401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42005131423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1378738 + ... + 1408874.

It is an arithmetic number, because the mean of its divisors is an integer number (2639320281).

Almost surely, 2^42005131422 is an apocalyptic number.

42005131422 is an abundant number, since it is smaller than the sum of its proper divisors (42453117570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42005131422 is a wasteful number, since it uses less digits than its factorization.

42005131422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31372.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 42005131422 its reverse (22413150024), we get a palindrome (64418281446).

The spelling of 42005131422 in words is "forty-two billion, five million, one hundred thirty-one thousand, four hundred twenty-two".